MegaSquirt is a revolutionary performance oriented engine management system (EMS). Designed by Grippo & Bowling, it is one of the few low cost but fully featured aftermarket engine management systems available today.

Each SymTech Labs MegaSquirt ECU comes professionally assembled and configured for your application. No soldering, crimping or connecting is required inside the unit whatsoever. Simply plug in a SymTech Labs MegaSquirt wiring harness and you're good to go!

This MegaSquirt ECU includes an MS2 processor and v3.0 or v3.57 board. Please contact our sales team for MS1 systems and older boards.

Please view our MegaSquirt option service page for hardware options and additional circuits:

Megasquirt Option Service

MegaSquirt units are custom built to order and require a two week lead time. Please contact our sales team if you need expedited service.

SymTech Labs 420A MegaSquirt Wiring Guide: PNG | PDF
SymTech Labs 4G63 MegaSquirt Wiring Guide: PNG | PDF
SymTech Labs Generic MegaSquirt Wiring Guide: PNG | PDF

All MegaSquirt ECU's are NC/NR.